Max learns how to tell that the wall is down.
|Seen in||Episode #5: "Now You See Him, Now You Don't"|
|Kind of device||Defence|
|Used by||Maxwell Smart|
The wall cannot be seen but is impervious to all forms of attack. It is lowered by leaning on a panel on the edge of the desk.
[Episode #5: "Now You See Him, Now You Don't".]